| Aliens in the Attic | 2009 | nds, ps2, wii |
| Aliens vs. Predator - Requiem | 2007 | psp |
| All Grown Up! - Express Yourself | 2004 | gba |
| Alluris | 2020 | switch |
| The Almost Gone | 2020 | switch |
| Alnam no Kiba - Juuzoku Juuni Shinto Densetsu | 1996 | ps1 |
| Alone With You | 2021 | switch |
| Alone with You | 2016 | ps4, vita |
| Alternate Jake Hunter: Daedalus The Awakening of Golden Jazz | 2018 | switch |
| Amaekata wa Kanojo Nari ni | 2017 | switch, vita |
| Amagami | 2009 | ps2 |
| Amagami | 2011 | psp |
| Amagi Shien | 1997 | saturn |
| Amagoushi no Yakata | 2007 | ps2 |
| Amagoushi no Yakata - Ichiyanagi Nagomu, Saisho no Junan | 2008 | ps2 |
| Amagoushi no Yakata Portable - Ichiyanagi Nagomu, Saisho no Junan | 2009 | psp |
| Amairo Chocolate | 2024 | switch |
| Amakano | 2022 | switch |
| Amakano: Second Season | 2023 | switch |
| Amamane | 2019 | vita |
| Amatsumi Sora ni! Kumo no Hatate ni | 2012 | psp |
| Amatsumi Sora ni! Kumo no Hatate ni | 2015 | vita |
| Amatsutsumi | 2018 | vita |
| Amazing Adventures - The Forgotten Ruins | 2008 | nds |
| The Amazing Race | 2010 | wii |
| The Amazing Shinsengumi: Heroes in Love | 2018 | switch |
| Amenity's Life | 2017 | vita |
| American Dream | 1989 | nes |
| American Girl - Julie Finds a Way | 2007 | nds |
| American Girl - Kit Mystery Challenge! | 2008 | nds |
| American Hero | 2021 | switch |
| Amerzone - The Explorer's Legacy | 1999 | ps1 |
| Amnesia | 2019 | switch |
| Amnesia - Memories | 2011 | psp, vita |
| Amnesia Collection | 2019 | switch |
| Amnesia Crowd | 2013 | psp |
| Amnesia Later | 2012 | psp |
| Amnesia Later x Crowd | 2019 | switch |
| Amnesia Later x Crowd V Edition | 2014 | vita |
| Amnesia World | 2014 | vita |
| Anamorphine | | xboxone |
| Anata o Yurusanai | 2007 | psp |
| Angel Present | 2001 | dreamcast |
| Angel Wish - Kimi no Egao ni Chu! | 2005 | dreamcast |
| Angel Wish - Kimi no Egao ni Chu! | 2005 | ps2 |
| Angel's Feather | 2004 | ps2 |
| Angel's Feather - Kuro no Zan'ei | 2005 | ps2 |
| Angelic Concert | 2003 | ps2, xbox |
| Angelique - Maren no Rokukishi | 2011 | psp |
| Angelique Luminarise | 2021 | switch |
| Angelique Retour | 2015 | psp, vita |
| Angels of Death | 2018 | switch |
| Angels with Scaly Wings | 2021 | switch |
| Angry Golf | 2021 | switch |
| Anguna - Warriors of Virtue | 2008 | gba |
| Anguna - Warriors of Virtue | 2008 | gba |
| Anguna 2600 | 2016 | a2600 |
| Animal Rivals: Up in the Air | 2022 | switch |
| Anime Eikaiwa - 15 Shounen Hyouryuuki - Hitomi no Naka no Shounen | 2001 | ps2 |
| Anime Eikaiwa - Tondemo Nezumi Daikatsuyaku | 2001 | ps2 |
| Anime Eikaiwa - Tottoi | 2001 | ps2 |
| Ankh - Curse of the Scarab King | 2008 | nds |
| Ankh - Der Fluch des Skarabaeenkoenigs | 2004 | nds |
| Ankh - La Malediction du Roi Scarabee | 2008 | nds |
| Ankh - Tutankhamen no Nazo | 1997 | ps1 |
| Ankoku Shinwa - Yamato Takeru Densetsu | 1989 | nes |
| Anna - Extended Edition | 2014 | ps3, xbox360 |
| Anna's Quest | 2021 | switch |
| Anohana - Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai | 2012 | psp |
| Anoko wa Ore kara Hanarenai | 2014 | ps4 |
| Anonymous;Code | 2022 | ps4, switch |
| Another Code - Two Memories | 2005 | nds |
| Another Code R - A Journey into Lost Memories | 2009 | wii |
| Another Code: Recollection | 2024 | switch |
| Another Heaven - Memory of those Days | 2000 | wsc |
| Another Mind | 1998 | ps1 |
| Another Time, Another Leaf - Kagami no Naka no Tantei | 2004 | nds |
| Anoxemia | 2017 | xboxone |
| The Ant Bully | 2006 | gba, gc, ps2, wii |
| AntVentor | 2020 | switch |
| Ao no 6-gou - Antarctica | 2000 | ps1 |
| Ao no 6-gou - Saigetsu Hito o Matazu - Time and Tide | 2000 | dreamcast |
| Ao no Exorcist - Genkoku no Labyrinth | 2012 | psp |
| Ao no Kanata no Four Rhythm | 2016 | vita |
| Ao no mama de | 2004 | ps2 |
| Aoi Namida | 2004 | xbox |
| Aoi Shiro | 2008 | ps2 |
| Aoi Shiro HD Remaster | 2023 | switch |
| Aoi Sora no Neosphere - Nanoca Flanka Hatsumei Koubouki 2 | 2007 | ps2 |
| Aoi Sora no Neosphere Portable - Nanoca Flanka Hatsumei Koubouki 2 | 2012 | psp |
| Aoi Umi no Tristia - Nanoca Flanka Hatsumei Koubouki | 2005 | ps2 |
| Aoi Umi no Tristia Portable - Nanoca Flanka Hatsumei Koubouki | 2012 | psp |
| Aokana: Four Rhythm Across the Blue | 2017 | ps4, switch |
| Aonatsu Line | 2020 | switch, vita |
| Apathy - Narugami Gakuen Toshi Densetsu Tantei Kyoku | 2004 | nds |
| Apocalipsis | 2019 | xboxone |
| Apocripha-0 | 2004 | ps2 |
| Apollo Justice - Ace Attorney | 2007 | nds |
| Apollo Justice: Ace Attorney Trilogy | 2024 | switch, xboxone |
| Apsulov: End of Gods | 2021 | switch |